Optical disc recording/reproducing apparatus and data recording method for use with such apparatus

a technology of optical discs and recording equipment, which is applied in the direction of read-only discs, electronic editing digitised analogue information signals, instruments, etc., can solve problems such as servo errors, focusing errors and tracking errors, and information cannot be reproduced properly

Inactive Publication Date: 2006-06-13
TEAC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0052]It may be understood from the foregoing description that the optical disc recording / reproducing apparatus according to the present invention generally includes:
[0054](b) an optical disc drive control unit, coupled to said optical disc drive, for issuing various instructions to said optical disc drive and for obtaining the state information from said optical disc drive, wherein said optical disc drive control unit includes:
[0055](c) a memory unit for storing therein the nominal recordable last position recorded on the optical disc;
[0056](d) a command issuing unit for providing trial write instructions for said optical disc drive for causing said optical disc drive to write the recording position information on a trial basis as specified by the corresponding trial write instruction;
[0057](e) a result code obtaining unit for obtaining the error information from said optical disc drive, if any error occurs as a result of executing the trial write instruction; and
[0058](f) a recordable last position setting unit, coupled to each respective one of said memory unit, command issuing unit and result code obtaining unit, for controlling said each respective one, wherein said recordable last position setting unit may be operated to set the end burst position based on the error information obtained by said result code receiving unit, and to set the recordable last position between said end burst position and the nominal recordable last position stored in said memory unit.

Problems solved by technology

Some servo errors, such as the focusing error and tracking error, might occur if any recording would be attempted in those recordable regions.
Very often, this would cause the problem in that the information could not be reproduced properly.
For the musical optical disc that contains the music data, for example, this problem would appear as breaks or interruptions in the music when it is replayed.
Although this method may permit the data or music to be recorded on the extended area on the disc, it still has the problem in that the additional time that can be extended must be small in order to ensure that the recording can occur with safety, when it is considered that there are some variances in the individual optical discs.
The additional time may be extended at the sacrifice of the recording safety, but if so, the tracking errors or focusing errors as described above would be caused for some types of optical discs.

Method used

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  • Optical disc recording/reproducing apparatus and data recording method for use with such apparatus
  • Optical disc recording/reproducing apparatus and data recording method for use with such apparatus
  • Optical disc recording/reproducing apparatus and data recording method for use with such apparatus

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first embodiment

[0073]One embodiment of the present invention is now described by referring to the figures.

[0074]FIG. 1 represents the CD-RW recording / reproducing system according to one embodiment of the present invention.

[0075]A CD-RW drive 1 is connected to a personal computer 2 through any of the well-known interface cables, such as ATAPI, SCSI, USB, IEEE 1394 and the like.

[0076]The personal computer 2 includes a central processing unit (CPU) 3, a hard disc drive (HDD) 4, and a random access memory (RAM) 5, and has any of the well-known operating systems installed thereon, on which programs such as application programs may be running. In addition, the personal computer 2 includes a display unit such as display 6, and operating units 7 such as keyboard, mouse. The present invention is primarily intended to provide a particular program (writing program) that may run on the personal computer 2.

[0077]FIG. 2 is a conceptual block diagram illustrating the components of the personal computer 2 that ar...

second embodiment

[0102]In the preceding embodiment, using the overburn-based recording is the prerequisite to recording the data on an optical disc. In the second embodiment, the overburn-based recording is provided as an option. Thus, the user may use or may not use the overburn-based recording when the data is to be recorded on the optical disc.

[0103]Specifically, the control device 15 may provide the overburn-based recording predetermining function that determines the time required to record any particular data source (required recording time), compares the required recording time with the recordable time that is available on a particular optical disc, and sets the recordable last position if it is found that the required recording time is longer than the recordable time on the optical disc. The control device 15 may also provide the recoding range setting function that allows the user to request the overburn-based recording, and may set the recordable range in accordance with the above recordabl...

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Abstract

An optical disc recording / reproducing apparatus and a data recording method for use with such apparatus are disclosed, wherein data can be recorded on an optical disc with safety and reliably by using the so-called overburn-based recording technique. The apparatus includes an optical disc drive (1) and a optical disc drive control unit (20) for causing various instructions to be delivered to the disc drive and for causing the state information to be obtained from the disc drive, under control of the control unit (20), wherein the control unit (20) includes functional components that may be operated under control of the control unit (20), such as a memory unit (12) for storing the nominal recordable last position retrieved from the optical disc, a command issuing unit (10) for delivering trial writing instructions or commands to the disc drive, a result code obtaining unit (11) for obtaining the error information from the disc drive that indicates whether any error occurs when a particular trial writing instruction or command is performed on the disc drive, and a recordable last position setting unit (15) for determining an end burst position based on the error information and the recording position information and setting a recordable last position between the end burst position and the nominal recordable last position. The present invention allows for the use of the overburn-based recording technique that provides an additional recording time that is sufficient to permit data to be recorded with safety and reliably, regardless of any variances that exist between individual optical discs.

Description

BACKGROUND[0001]1. Technical Field[0002]The present invention relates to an optical disc recording / reproducing apparatus and a data recording method for use with such apparatus. More particularly, the present invention relates to an apparatus and method for recording the data on an optical disc, such as CD-R, CD-RW, DVD-R, MO and the like, wherein the data recording can be performed beyond the nominal storage capacity of such optical disc that contains any particular information such as addresses and the like previously written on the wobbles thereof.[0003]2. Prior Art[0004]An optical disc such as a write-once CD-R, rewritable CD-RW and the like contains the embedded information (ATIP information) such as addresses and the like that have previously been written in a particular sequence on the wobbles in accordance with the specifications, and the information that represents the locations (addresses) on the optical disc may be retrieved by reading the embedded information from the d...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): G11B7/00G11B7/004G11B7/0045G11B7/007G11B20/10G11B20/12G11B27/034G11B27/36
CPCG11B7/0045G11B20/10G11B27/034G11B27/36G11B7/00736G11B2220/2562G11B2220/216G11B2220/218G11B2220/2525G11B2220/2529G11B2220/2545G11B2220/213
InventorCHIBA, KATSUHITOKATO, TETSUYA
OwnerTEAC CORP